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Cs(CO)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Cs is bonded in a 8-coordinate geometry to eight equivalent O atoms. There are a spread of Cs–O bond distances ranging from 3.10–3.62 Å. C is bonded in a distorted single-bond geometry to one O atom. The C–O bond length is 1.26 Å. O is bonded in a distorted single-bond geometry to four equivalent Cs and one C atom.
Cs4CO4 crystallizes in the monoclinic C2 space group. The structure is two-dimensional and consists of one Cs4CO4 sheet oriented in the (0, 0, 1) direction. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cs–O bond distances ranging from 2.83–2.91 Å. In the second Cs1+ site, Cs1+ is bonded in a 1-coordinate geometry to five O2- atoms. There are a spread of Cs–O bond distances ranging from 2.89–3.69 Å. C4+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.43 Å) and two longer (1.44 Å) C–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to four Cs1+ and one C4+ atom.
Cs4CO4 is alpha Po structured and crystallizes in the trigonal R3 space group. The structure is zero-dimensional and consists of three Cs4CO4 clusters. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to three O2- atoms. There are a spread of Cs–O bond distances ranging from 2.75–2.85 Å. In the second Cs1+ site, Cs1+ is bonded in a 12-coordinate geometry to three equivalent O2- atoms. All Cs–O bond lengths are 2.80 Å. C4+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.44 Å) and one longer (1.45 Å) C–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to three Cs1+ and one C4+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to three equivalent Cs1+ and one C4+ atom.
Cs4CO4 is alpha Po structured and crystallizes in the cubic P-43m space group. The structure is zero-dimensional and consists of one Cs4CO4 cluster. Cs1+ is bonded in a 9-coordinate geometry to three equivalent O2- atoms. All Cs–O bond lengths are 2.80 Å. C4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All C–O bond lengths are 1.44 Å. O2- is bonded in a single-bond geometry to three equivalent Cs1+ and one C4+ atom.
Cs2CO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Cs–O bond distances ranging from 3.17–3.39 Å. In the second Cs1+ site, Cs1+ is bonded to six O2- atoms to form distorted face-sharing CsO6 octahedra. There are a spread of Cs–O bond distances ranging from 2.99–3.43 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. All C–O bond lengths are 1.31 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to four Cs1+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one C4+ atom.
Cs4CO4 crystallizes in the tetragonal I-42m space group. The structure is three-dimensional. Cs1+ is bonded in a 5-coordinate geometry to five equivalent O2- atoms. There are a spread of Cs–O bond distances ranging from 2.83–3.42 Å. C4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All C–O bond lengths are 1.44 Å. O2- is bonded in a single-bond geometry to five equivalent Cs1+ and one C4+ atom.
Cs4CO4 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are two inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cs–O bond distances ranging from 2.79–3.25 Å. In the second Cs1+ site, Cs1+ is bonded in a 1-coordinate geometry to four O2- atoms. There are a spread of Cs–O bond distances ranging from 2.66–3.60 Å. C4+ is bonded in a tetrahedral geometry to four O2- atoms. There is two shorter (1.43 Å) and two longer (1.45 Å) C–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to four Cs1+ and one C4+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to four Cs1+ and one C4+ atom.